import cadquery as cq
w0=cq.Workplane('YZ',origin=(35,0,0))
w1=cq.Workplane('ZX',origin=(0,-16,0))
r=w0.workplane(offset=-87/2).moveTo(-37,0).cylinder(87,63).union(w1.sketch().segment((-70,10),(70,10)).segment((70,24)).segment((4,24)).segment((4,51)).segment((-70,51)).close().assemble().finalize().extrude(116))